Well done! I love the used, but not jalopy look of it. I often feel vehicles are too weathered. I'm just about to the weathering stage on my Space Wolves Rhino/Razorback. I'd love more detail on how you went about this. Thinning ratio, psi setting (as asked above). Really great work!

Psi...hmm I don't really know exactly but it is less than 20. I thinned these paints down quite a bit with matte medium and water...probably the ratio is 2:1, thinner to paint from the pot. Main trick is being gentle on the trigger and on the streaks, I went from bottom up. I think that helps immensely.